US291865A - Machine - Google Patents

Description

(No Model.)

4 Sheets- Sheet 1. J. K.' BENWAY.

DADOING MACHINE.

No. 291,865. Patented Jan. 15.1884.

(No Model.) 4 Sheets-Sheet 3.

DADOING MACHINE.

No. 291,888. 13818111881 Jan. 15, 1884.

(No Model.) A 1 4 Sheets-Sheet 4. J. K. BENWAY.

ADoING MACHINE. V N0. 291,865. Patented Jan. 15. 1884.

IIIIIII llllllllxlllll go jecting ends, a', which slide in grooves pro- .of the adjustable stop or spacer.

rtree.

JAMES K. BEVAY, OF ALBANY, NEV YORK..

MACHINE.

SPECIFICATION forming part of Letters Patent No. 291,865, dated January 15, 188.1.

Application filed February 23, 1883. (No model.)

1"@ LU whom it 71u07/ concern:

Be it known that I, JAMEs K. Runway, a citizen of the United States, and a resident of Albany, in the county of .Albany and State of New York, have invented certain new and useful Improvements in Dadoing-Machines, and I do hereby declare the following to be a full, clear, and exact description of the same, referencebeing had to the accompanying drawings, in which Figure I represents a front view of my improved dadoing-machine. Fig. 2 represents an end view. Fig. 3 is aplan view of the traveling frame. Fig. et is a plan view of the machine. Figs. 5, 6, and 7 are detail views of the cutting-head. 'Fig'. Sis a detail view My invention consists in a machine principally for dadoing pigeon-holes, stair-strings, step-ladders, book-racks, &c. It can also be used to advantage in center-beading panels that are too wide for ordinary molding-1naehines.

rIhe operator is supposed to stand in front 4of the machine, as shown at- Fig. l.

Referring to the drawings, A represents a traveling frame having a handle, a, by means of which it may be moved by the opera-tor, the said frame being also provided with four provided vfor that purpose in the adjustable frames I I. The traveling frame A has `a cuttinghead, A', turning with the shaftA, receiving motion from the pulley-wheel A, connected by the belt a to the upper pulley-wheel, I).

B represents a counter-shaft j ournaled in the tilting frame C, the latter having abalancingweight, l), at its farther end. y The tilting frame C is hung in the suspending-bracket O.

E and E are pivot -blocks with an adjustable connecting rod or rods, D. By constructing the rod of two pieces, as shown, it can be adapted to rooms of any height. The rods D are provided at each end with straps, which encircle the pivot-blocks E and E', the former being placed upon axle A, a-nd the whole is so arranged that while the machine is running at full speed and the traveling head moving backward and forward the adjusting-rods and the tilting mechanism may adapt the upper shaft, B, and the driving-belt to the position of the traveling frame A, and the said belt will always sustain an invariable tension. By means of the screw .I the traveling frame A may be raised or lowered, thereby adapting it to any depth` of cut. The said screw Jhas two worm-screws, j j, which gear with the pinions j upon the spindles j, bearing at their lower ends in the brackets s, and at their upper ends provided with screws turning in the depending brackets i of the adjustable frames I I. The screw-shaft J is also provided with a bevel-gear, m, which connects it to similar adjusting mechanism at the rear of the machine. By this means the traveling frame A and adjustable frames I I are easily raised or lowered, and when in any desired position they are rigidly held by set-screws h it of the rests II I-I, moving in vertical slots.

G G are laterally-placed chucks of the vertical carriage or bed F.

Y The cutting or dadoing head A is constructed of two pieces, each piece having a set of sawteeth, t, and a cutting-edge, e. rlhe teeth are adapted to cut the shoulder of the dado, the cutting-edges removing the dbris of the groove.

To enlarge the dado or groove, itis onlynecessary to separate thetwo portions of the head A', and insert between them a washer such as shown in Fig. 7. If it is desired to increase the width still further, the washer maybe removed and the cutting-points shownin Fig. 6 are sub` stituted. These washers and cutting-points may be increased to any number desired, and may be used together or separately, as described.

F represents a carriage adapted to move vertically in the frame of the machine, and it is provided with lifting-pieces j', pivoted to the foot-lever M. The lever M is pivoted at t in hangers t of the frame. The carriage F and piece f are provided with a screw, Q, forregulating the connection between the two.

The machine is adapted to make any number of eases of pigeon-holes or other similar work, and it is only necessary in doing so to lay out or mark one piece. This piece is passed into the machine, as shown at N in Fig. 2. The operator then places his foot on the lever M, pressing it down, by which means the carriage F is raised. The piece N is held by the chucks G G of the bed and the rest H. The traveling IOC) long.

frame A is then drawn forward until within such distance from the face-edge as maybe desired. rIhen by means of a suitable screw it is adjusted in the frame I I. 'By liberating the lever M the carriage F will descend, permittine the traveling frame to be moved to the rear of the machine. The piece N is then adjusted to the next line for dadoing. This operation is repeated until the pattern is complete. This piece is then removed, and a small nail or screw is driven through each end and filed off sharp, leaving the points about one-eighth of an inch It is then replaced in the machine upside down,but with the same edge to the front, and it is passed far enoughto allow the stop Kto drop into the first cut or groove. The screw Q is turned and the carriage Fis lowered, thereby making a greater space for the successive pieces to be operated on. Another piece is placed upon the pattern-piece, theintervening spurs preventing; them from slipping from each other.

The stop K is directly under the cutter A', so

that by the repetition of the operation before described the pattern will necessarily be duplicated. Such pieces as are required to be dadoed on both sides are then put through the machine without the use of the pattern,which operation will bring the grooves opposite to each other. These pieces are of course adapted to hold shelves on both sides.

In the manufacture of step-ladders or stairstrings, a narrow bar is placed'on the front side ofthe bed F and fastenedto a chuclqG, at one end and secured by means of a thumb-screw to the bed at the other, and at such an angle as required for the pitch of the stair or step.

By referring to Fig. S it will. be seen that of the two stops K K the former is stationary, and is always on a line with the cutting-head A', and the latter is capable of adjustment by means of the screw L. In the figure referred to they are shown in a line with each other, and in that position will enter the smallest dado, and so, also, by turning the screw L, K can be moved along, so that they will fill any width of dado desired.

The stops are attached to spring-pieces, as shown, so that when working without a pattern or in making a pattern they can be pressed down and out oi' the way.

It can easily be seen that the power acquired by the foot-lever is such that no matter what the condition ofthe wood may be-for instance, if it is warped or otherwise bent-the pressure of the said lever and its superimposed carriage will straighten it.

The screw .I and its connecting-gear may be substituted, if desired, by a screw, similar to Q, placed in each of the raised parts of rest H.

Any novel subject-matter which I have described but not claimed in this application is hereby reserved to be claimed in future applications.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

l. The combination of the adj listing-frame and the traveling frame having means of adj ustmcnt, as described, the said traveling frame being provided with acentral shaft, connected by means of a driving-belt and adjustable rod or rods to a tilting frame having a shaft and balancing-weight, the whole adapted to operate substantially as set forth.

2. In a dadoing or other molding machine, the combination,with a weighted driving-pulley, of a laterally-traveling frame carrying the cutter-head and adapted to be guided in its path by suitable tongues engaging in horizontal grooves in a frame having' means for vertical adjustment, substantially as described, and for the purposes set forth.

In a dadoing or other molding machine, the combinatiomwith a traveling frame carrying the cutter-head, of a vertically-moving work-table operated by a foot-lever having pivotal bearings in the stationary frame and a` set-screw for regulating its movement, as set forth.

4. In combination with the dadoing-niachine, the spacing, detaining, and duplicating' mechanism` consisting of stops arranged as described, one of said stops being provided with an adjusting-screw, as and for the purposes 'set forth.

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